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<h1 id="sec_name">
<span data-if="hdevelop" style="display:inline;">atan2_image</span><span data-if="c" style="display:none;">atan2_image</span><span data-if="cpp" style="display:none;">Atan2Image</span><span data-if="dotnet" style="display:none;">Atan2Image</span><span data-if="python" style="display:none;">atan2_image</span> (算子名称)</h1>
<h2>名称</h2>
<p><code><span data-if="hdevelop" style="display:inline;">atan2_image</span><span data-if="c" style="display:none;">atan2_image</span><span data-if="cpp" style="display:none;">Atan2Image</span><span data-if="dotnet" style="display:none;">Atan2Image</span><span data-if="python" style="display:none;">atan2_image</span></code> — Calculate the arctangent of two images.</p>
<h2 id="sec_synopsis">参数签名</h2>
<div data-if="hdevelop" style="display:inline;">
<p>
<code><b>atan2_image</b>(<a href="#ImageY"><i>ImageY</i></a>, <a href="#ImageX"><i>ImageX</i></a> : <a href="#ArctanImage"><i>ArctanImage</i></a> :  : )</code></p>
</div>
<div data-if="c" style="display:none;">
<p>
<code>Herror <b>atan2_image</b>(const Hobject <a href="#ImageY"><i>ImageY</i></a>, const Hobject <a href="#ImageX"><i>ImageX</i></a>, Hobject* <a href="#ArctanImage"><i>ArctanImage</i></a>)</code></p>
<p>
<code>Herror <b>T_atan2_image</b>(const Hobject <a href="#ImageY"><i>ImageY</i></a>, const Hobject <a href="#ImageX"><i>ImageX</i></a>, Hobject* <a href="#ArctanImage"><i>ArctanImage</i></a>)</code></p>
</div>
<div data-if="cpp" style="display:none;">
<p>
<code>void <b>Atan2Image</b>(const HObject&amp; <a href="#ImageY"><i>ImageY</i></a>, const HObject&amp; <a href="#ImageX"><i>ImageX</i></a>, HObject* <a href="#ArctanImage"><i>ArctanImage</i></a>)</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>::<b>Atan2Image</b>(const HImage&amp; <a href="#ImageX"><i>ImageX</i></a>) const</code></p>
</div>
<div data-if="com" style="display:none;"></div>
<div data-if="dotnet" style="display:none;">
<p>
<code>static void <a href="HOperatorSet.html">HOperatorSet</a>.<b>Atan2Image</b>(<a href="HObject.html">HObject</a> <a href="#ImageY"><i>imageY</i></a>, <a href="HObject.html">HObject</a> <a href="#ImageX"><i>imageX</i></a>, out <a href="HObject.html">HObject</a> <a href="#ArctanImage"><i>arctanImage</i></a>)</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>.<b>Atan2Image</b>(<a href="HImage.html">HImage</a> <a href="#ImageX"><i>imageX</i></a>)</code></p>
</div>
<div data-if="python" style="display:none;">
<p>
<code>def <b>atan2_image</b>(<a href="#ImageY"><i>image_y</i></a>: HObject, <a href="#ImageX"><i>image_x</i></a>: HObject) -&gt; HObject</code></p>
</div>
<h2 id="sec_description">描述</h2>
<p><code><span data-if="hdevelop" style="display:inline">atan2_image</span><span data-if="c" style="display:none">atan2_image</span><span data-if="cpp" style="display:none">Atan2Image</span><span data-if="com" style="display:none">Atan2Image</span><span data-if="dotnet" style="display:none">Atan2Image</span><span data-if="python" style="display:none">atan2_image</span></code> calculates the arctangent
<a href="#ImageY"><i><code><span data-if="hdevelop" style="display:inline">ImageY</span><span data-if="c" style="display:none">ImageY</span><span data-if="cpp" style="display:none">ImageY</span><span data-if="com" style="display:none">ImageY</span><span data-if="dotnet" style="display:none">imageY</span><span data-if="python" style="display:none">image_y</span></code></i></a>/<a href="#ImageX"><i><code><span data-if="hdevelop" style="display:inline">ImageX</span><span data-if="c" style="display:none">ImageX</span><span data-if="cpp" style="display:none">ImageX</span><span data-if="com" style="display:none">ImageX</span><span data-if="dotnet" style="display:none">imageX</span><span data-if="python" style="display:none">image_x</span></code></i></a> of the input images
<a href="#ImageY"><i><code><span data-if="hdevelop" style="display:inline">ImageY</span><span data-if="c" style="display:none">ImageY</span><span data-if="cpp" style="display:none">ImageY</span><span data-if="com" style="display:none">ImageY</span><span data-if="dotnet" style="display:none">imageY</span><span data-if="python" style="display:none">image_y</span></code></i></a> and <a href="#ImageX"><i><code><span data-if="hdevelop" style="display:inline">ImageX</span><span data-if="c" style="display:none">ImageX</span><span data-if="cpp" style="display:none">ImageX</span><span data-if="com" style="display:none">ImageX</span><span data-if="dotnet" style="display:none">imageX</span><span data-if="python" style="display:none">image_x</span></code></i></a>, using the signs of the gray
values of the two images to determine the quadrant of the result,
and stores the result in the image <a href="#ArctanImage"><i><code><span data-if="hdevelop" style="display:inline">ArctanImage</span><span data-if="c" style="display:none">ArctanImage</span><span data-if="cpp" style="display:none">ArctanImage</span><span data-if="com" style="display:none">ArctanImage</span><span data-if="dotnet" style="display:none">arctanImage</span><span data-if="python" style="display:none">arctan_image</span></code></i></a>.  The angles
in <a href="#ArctanImage"><i><code><span data-if="hdevelop" style="display:inline">ArctanImage</span><span data-if="c" style="display:none">ArctanImage</span><span data-if="cpp" style="display:none">ArctanImage</span><span data-if="com" style="display:none">ArctanImage</span><span data-if="dotnet" style="display:none">arctanImage</span><span data-if="python" style="display:none">arctan_image</span></code></i></a> are represented in radians.</p>
<h2 id="sec_attention">注意</h2>
<p><code><span data-if="hdevelop" style="display:inline">atan2_image</span><span data-if="c" style="display:none">atan2_image</span><span data-if="cpp" style="display:none">Atan2Image</span><span data-if="com" style="display:none">Atan2Image</span><span data-if="dotnet" style="display:none">Atan2Image</span><span data-if="python" style="display:none">atan2_image</span></code> can be executed on an OpenCL device for int1,
int2, int4, and real images. Note that the results of the OpenCL
code may vary from the results produced by the CPU.</p>
<h2 id="sec_execution">运行信息</h2>
<ul>
    
      <li>支持OpenCL计算设备。</li>
    
  <li>多线程类型:可重入(与非独占操作符并行运行)。</li>
<li>多线程作用域:全局(可以从任何线程调用)。</li>
  
    <li>在元组级别自动并行化。</li>
    <li>在图像通道级别自动并行化。</li>
    <li>Automatically parallelized on  domain level.</li>
  
</ul>
<h2 id="sec_parameters">参数表</h2>
  <div class="par">
<div class="parhead">
<span id="ImageY" class="parname"><b><code><span data-if="hdevelop" style="display:inline">ImageY</span><span data-if="c" style="display:none">ImageY</span><span data-if="cpp" style="display:none">ImageY</span><span data-if="com" style="display:none">ImageY</span><span data-if="dotnet" style="display:none">imageY</span><span data-if="python" style="display:none">image_y</span></code></b> (input_object)  </span><span>(multichannel-)image(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="c" style="display:none">Hobject</span> (int1* / int2* / int4* / int8 / real*)<i> *allowed for compute devices</i></span>
</div>
<p class="pardesc">Input image 1.</p>
</div>
  <div class="par">
<div class="parhead">
<span id="ImageX" class="parname"><b><code><span data-if="hdevelop" style="display:inline">ImageX</span><span data-if="c" style="display:none">ImageX</span><span data-if="cpp" style="display:none">ImageX</span><span data-if="com" style="display:none">ImageX</span><span data-if="dotnet" style="display:none">imageX</span><span data-if="python" style="display:none">image_x</span></code></b> (input_object)  </span><span>(multichannel-)image(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="c" style="display:none">Hobject</span> (int1 / int2 / int4 / int8 / real)</span>
</div>
<p class="pardesc">Input image 2.</p>
</div>
  <div class="par">
<div class="parhead">
<span id="ArctanImage" class="parname"><b><code><span data-if="hdevelop" style="display:inline">ArctanImage</span><span data-if="c" style="display:none">ArctanImage</span><span data-if="cpp" style="display:none">ArctanImage</span><span data-if="com" style="display:none">ArctanImage</span><span data-if="dotnet" style="display:none">arctanImage</span><span data-if="python" style="display:none">arctan_image</span></code></b> (output_object)  </span><span>(multichannel-)image(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="c" style="display:none">Hobject *</span> (real)</span>
</div>
<p class="pardesc">Output image.</p>
</div>
<h2 id="sec_alternatives">可替代算子</h2>
<p>
<code><a href="atan_image.html"><span data-if="hdevelop" style="display:inline">atan_image</span><span data-if="c" style="display:none">atan_image</span><span data-if="cpp" style="display:none">AtanImage</span><span data-if="com" style="display:none">AtanImage</span><span data-if="dotnet" style="display:none">AtanImage</span><span data-if="python" style="display:none">atan_image</span></a></code>
</p>
<h2 id="sec_see">参考其它</h2>
<p>
<code><a href="acos_image.html"><span data-if="hdevelop" style="display:inline">acos_image</span><span data-if="c" style="display:none">acos_image</span><span data-if="cpp" style="display:none">AcosImage</span><span data-if="com" style="display:none">AcosImage</span><span data-if="dotnet" style="display:none">AcosImage</span><span data-if="python" style="display:none">acos_image</span></a></code>, 
<code><a href="asin_image.html"><span data-if="hdevelop" style="display:inline">asin_image</span><span data-if="c" style="display:none">asin_image</span><span data-if="cpp" style="display:none">AsinImage</span><span data-if="com" style="display:none">AsinImage</span><span data-if="dotnet" style="display:none">AsinImage</span><span data-if="python" style="display:none">asin_image</span></a></code>, 
<code><a href="tan_image.html"><span data-if="hdevelop" style="display:inline">tan_image</span><span data-if="c" style="display:none">tan_image</span><span data-if="cpp" style="display:none">TanImage</span><span data-if="com" style="display:none">TanImage</span><span data-if="dotnet" style="display:none">TanImage</span><span data-if="python" style="display:none">tan_image</span></a></code>, 
<code><a href="sin_image.html"><span data-if="hdevelop" style="display:inline">sin_image</span><span data-if="c" style="display:none">sin_image</span><span data-if="cpp" style="display:none">SinImage</span><span data-if="com" style="display:none">SinImage</span><span data-if="dotnet" style="display:none">SinImage</span><span data-if="python" style="display:none">sin_image</span></a></code>, 
<code><a href="cos_image.html"><span data-if="hdevelop" style="display:inline">cos_image</span><span data-if="c" style="display:none">cos_image</span><span data-if="cpp" style="display:none">CosImage</span><span data-if="com" style="display:none">CosImage</span><span data-if="dotnet" style="display:none">CosImage</span><span data-if="python" style="display:none">cos_image</span></a></code>
</p>
<h2 id="sec_module">模块</h2>
<p>
Foundation</p>
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